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Finding the Fourth Proportional to 18,362, 25,328 and 14,644.88

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Solution

The fourth proportional to 18,362, 25,328 and 14,644.88 is: 20,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362 : 25,328 = 14,644.88 : x
  2. Step 2: Convert to fraction form
    18,362/25,328 = 14,644.88/x
  3. Step 3: Cross multiply
    18,362x = 25,328 × 14,644.88
  4. Step 4: Simplify right side
    18,362x = 370,925,520.64
  5. Step 5: Solve for x
    x = 370,925,520.64/18,362
  6. Step 6: Final answer
    x = 20,200.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.